package com.example.selenium.util;

import org.apache.commons.lang3.time.DateFormatUtils;

import java.lang.management.ManagementFactory;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.*;

/**
 * 时间工具类
 * 
 * @author ruoyi
 */
public class DateUtils extends org.apache.commons.lang3.time.DateUtils
{
    public static String YYYY = "yyyy";

    public static String YYYY_MM = "yyyy-MM";

    public static String YYYY_MM_DD = "yyyy-MM-dd";

    public static String YYYYMMDDHHMMSS = "yyyyMMddHHmmss";

    public static String YYYY_MM_DD_HH_MM_SS = "yyyy-MM-dd HH:mm:ss";
    
    private static String[] parsePatterns = {
            "yyyy-MM-dd", "yyyy-MM-dd HH:mm:ss", "yyyy-MM-dd HH:mm", "yyyy-MM", 
            "yyyy/MM/dd", "yyyy/MM/dd HH:mm:ss", "yyyy/MM/dd HH:mm", "yyyy/MM",
            "yyyy.MM.dd", "yyyy.MM.dd HH:mm:ss", "yyyy.MM.dd HH:mm", "yyyy.MM"};

    /**
     * 获取当前Date型日期
     * 
     * @return Date() 当前日期
     */
    public static Date getNowDate()
    {
        return new Date();
    }

    /**
     * 获取当前日期, 默认格式为yyyy-MM-dd
     * 
     * @return String
     */
    public static String getDate()
    {
        return dateTimeNow(YYYY_MM_DD);
    }

    public static final String getTime()
    {
        return dateTimeNow(YYYY_MM_DD_HH_MM_SS);
    }

    public static final String dateTimeNow()
    {
        return dateTimeNow(YYYYMMDDHHMMSS);
    }

    public static final String dateTimeNow(final String format)
    {
        return parseDateToStr(format, new Date());
    }

    public static final String dateTime(final Date date)
    {
        return parseDateToStr(YYYY_MM_DD, date);
    }

    public static final String parseDateToStr(final String format, final Date date)
    {
        return new SimpleDateFormat(format).format(date);
    }

    public static final Date dateTime(final String format, final String ts)
    {
        try
        {
            return new SimpleDateFormat(format).parse(ts);
        }
        catch (ParseException e)
        {
            throw new RuntimeException(e);
        }
    }

    /**
     * 日期路径 即年/月/日 如2018/08/08
     */
    public static final String datePath()
    {
        Date now = new Date();
        return DateFormatUtils.format(now, "yyyy/MM/dd");
    }

    /**
     * 日期路径 即年/月/日 如20180808
     */
    public static final String dateTime()
    {
        Date now = new Date();
        return DateFormatUtils.format(now, "yyyyMMdd");
    }

    /**
     * 日期型字符串转化为日期 格式
     */
    public static Date parseDate(Object str)
    {
        if (str == null)
        {
            return null;
        }
        try
        {
            return parseDate(str.toString(), parsePatterns);
        }
        catch (ParseException e)
        {
            return null;
        }
    }
    
    /**
     * 获取服务器启动时间
     */
    public static Date getServerStartDate()
    {
        long time = ManagementFactory.getRuntimeMXBean().getStartTime();
        return new Date(time);
    }

    /**
     * 计算两个时间差
     */
    public static String getDatePoor(Date endDate, Date nowDate)
    {
        long nd = 1000 * 24 * 60 * 60;
        long nh = 1000 * 60 * 60;
        long nm = 1000 * 60;
        // long ns = 1000;
        // 获得两个时间的毫秒时间差异
        long diff = endDate.getTime() - nowDate.getTime();
        // 计算差多少天
        long day = diff / nd;
        // 计算差多少小时
        long hour = diff % nd / nh;
        // 计算差多少分钟
        long min = diff % nd % nh / nm;
        // 计算差多少秒//输出结果
        // long sec = diff % nd % nh % nm / ns;
        return day + "天" + hour + "小时" + min + "分钟";
    }

    /**
     * 获取 传递进来的年月的第一天
     * @param year
     * @param month
     * @return
     */
    public static String getFirstDayOfMonth(int year,int month){
        Calendar calendar = Calendar.getInstance();
        calendar.set(year,month-1,1);
        String startDateStr = org.apache.http.client.utils.DateUtils.formatDate(calendar.getTime(), "yyyy-MM-dd");
        return startDateStr;
    }

    /**
     * 获取 传递进来的年月的最后一天
     * @param year
     * @param month
     * @return
     */
    public static String getLastDayOfMonth(int year,int month){
        Calendar calendar = Calendar.getInstance();
        calendar.set(year,month,0);
        String endDateStr = org.apache.http.client.utils.DateUtils.formatDate(calendar.getTime(),"yyyy-MM-dd");
        return endDateStr;
    }


    /**
     * 获取间隔分钟后的时间，minutes负数的话是向前推，minutes为正则向后推
     * @param minutes
     * @return
     */
    public static String getTimeByMinsDiff(int minutes,String patternStr){
        Calendar beforeTime = Calendar.getInstance();
        beforeTime.add(Calendar.MINUTE, minutes);// 5分钟之前的时间
        Date beforeD = beforeTime.getTime();
        String before = new SimpleDateFormat(patternStr).format(beforeD);
        return before;
    }


    /**
     * 获取周一和周日的结果集
     * @param startDate
     * @param endDate
     * @return
     * @throws ParseException
     */
    public static List<Map<String, String>> getBetweenWeeks(String startDate, String endDate) throws ParseException {
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
        Date start = sdf.parse(startDate);// 定义起始日期
        Date end = sdf.parse(endDate);// 定义结束日期
        // List<Date> result = new ArrayList<Date>();
        List<Map<String, String>> result = new ArrayList<Map<String, String>>();
        Calendar tempStart = Calendar.getInstance();
        tempStart.setTime(start);

        Calendar tempEnd = Calendar.getInstance();
        tempEnd.setTime(end);
        while (tempStart.before(tempEnd) || tempStart.equals(tempEnd)) {
            Map<String, String> map = new HashMap<String, String>();
            int we = tempStart.get(Calendar.DAY_OF_WEEK);
            if (we == 2) {
                map.put("mon", sdf.format(tempStart.getTime()));
            }

            if (map.isEmpty()) { // 检测map是否为空
                tempStart.add(Calendar.DAY_OF_YEAR, 1);
            } else {
                tempStart.add(Calendar.DAY_OF_YEAR, 6);
                map.put("sun", sdf.format(tempStart.getTime()));
                result.add(map);
            }
        }
        return result;
    }


    /**
     * 获取周日的结果集
     * @param startDate
     * @param endDate
     * @return
     * @throws ParseException
     */
    public static List<String> getShortWeekEndWeeks(String startDate, String endDate,String resultPattern) throws ParseException {
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
        Date start = sdf.parse(startDate);// 定义起始日期
        Date end = sdf.parse(endDate);// 定义结束日期
        // List<Date> result = new ArrayList<Date>();
        List<String>  result = new ArrayList< String>();
        Calendar tempStart = Calendar.getInstance();
        tempStart.setTime(start);

        Calendar tempEnd = Calendar.getInstance();
        tempEnd.setTime(end);
        while (tempStart.before(tempEnd) || tempStart.equals(tempEnd)) {
            Map<String, String> map = new HashMap<String, String>();
            int we = tempStart.get(Calendar.DAY_OF_WEEK);
            if (we == 1) {
                result.add( new SimpleDateFormat(resultPattern).format(tempStart.getTime()));
            }
            tempStart.add(Calendar.DAY_OF_YEAR, 1);
        }
        return result;
    }




 public static void main(String[] args){
     try {
         System.out.println(getShortWeekEndWeeks("2020-01-01","2020-12-30","MM/dd").toString());

         System.out.println(getBetweenWeeks("2020-04-01","2020-08-14"));
     } catch (ParseException e) {
         e.printStackTrace();
     }
 }


}
